From f90b518f43c8571cf2be793264e3f347d5eb2748 Mon Sep 17 00:00:00 2001
From: Sylvain Berfini <sylvain.berfini@belledonne-communications.com>
Date: Thu, 16 May 2024 10:19:14 +0200
Subject: [PATCH] Added a setting to disable UI secure mode preventing
 screenshots & screen recording

---
 .../settings/fragment/SettingsFragment.kt     |  7 +++++
 .../settings/viewmodel/SettingsViewModel.kt   | 18 ++++++++++++
 app/src/main/res/layout/settings_security.xml | 28 +++++++++++++++++++
 app/src/main/res/values-fr/strings.xml        |  1 +
 app/src/main/res/values/strings.xml           |  1 +
 5 files changed, 55 insertions(+)

diff --git a/app/src/main/java/org/linphone/ui/main/settings/fragment/SettingsFragment.kt b/app/src/main/java/org/linphone/ui/main/settings/fragment/SettingsFragment.kt
index b88f3cbd8..a4a5995b7 100644
--- a/app/src/main/java/org/linphone/ui/main/settings/fragment/SettingsFragment.kt
+++ b/app/src/main/java/org/linphone/ui/main/settings/fragment/SettingsFragment.kt
@@ -121,6 +121,13 @@ class SettingsFragment : GenericMainFragment() {
             }
         }
 
+        viewModel.recreateActivityEvent.observe(viewLifecycleOwner) {
+            it.consume {
+                Log.w("$TAG Recreate Activity")
+                requireActivity().recreate()
+            }
+        }
+
         viewModel.addLdapServerEvent.observe(viewLifecycleOwner) {
             it.consume {
                 val action = SettingsFragmentDirections.actionSettingsFragmentToLdapServerConfigurationFragment(
diff --git a/app/src/main/java/org/linphone/ui/main/settings/viewmodel/SettingsViewModel.kt b/app/src/main/java/org/linphone/ui/main/settings/viewmodel/SettingsViewModel.kt
index 3cb78756f..a36d244ab 100644
--- a/app/src/main/java/org/linphone/ui/main/settings/viewmodel/SettingsViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/settings/viewmodel/SettingsViewModel.kt
@@ -47,9 +47,15 @@ class SettingsViewModel @UiThread constructor() : GenericViewModel() {
     val expandNetwork = MutableLiveData<Boolean>()
     val expandUserInterface = MutableLiveData<Boolean>()
 
+    val recreateActivityEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
     // Security settings
     val isVfsEnabled = MutableLiveData<Boolean>()
 
+    val isUiSecureModeEnabled = MutableLiveData<Boolean>()
+
     // Calls settings
     val echoCancellerEnabled = MutableLiveData<Boolean>()
     val routeAudioToBluetooth = MutableLiveData<Boolean>()
@@ -169,6 +175,8 @@ class SettingsViewModel @UiThread constructor() : GenericViewModel() {
         }
 
         coreContext.postOnCoreThread { core ->
+            isUiSecureModeEnabled.postValue(corePreferences.enableSecureMode)
+
             echoCancellerEnabled.postValue(core.isEchoCancellationEnabled)
             routeAudioToBluetooth.postValue(corePreferences.routeAudioToBluetoothIfAvailable)
             videoEnabled.postValue(core.isVideoEnabled)
@@ -211,6 +219,16 @@ class SettingsViewModel @UiThread constructor() : GenericViewModel() {
         }
     }
 
+    @UiThread
+    fun toggleUiSecureMode() {
+        val newValue = isUiSecureModeEnabled.value == false
+        coreContext.postOnCoreThread {
+            corePreferences.enableSecureMode = newValue
+            recreateActivityEvent.postValue(Event(true))
+            isUiSecureModeEnabled.postValue(newValue)
+        }
+    }
+
     @UiThread
     fun toggleCallsExpand() {
         expandCalls.value = expandCalls.value == false
diff --git a/app/src/main/res/layout/settings_security.xml b/app/src/main/res/layout/settings_security.xml
index fd7c14737..1fc31c692 100644
--- a/app/src/main/res/layout/settings_security.xml
+++ b/app/src/main/res/layout/settings_security.xml
@@ -57,6 +57,34 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintTop_toTopOf="parent" />
 
+        <com.google.android.material.materialswitch.MaterialSwitch
+            style="@style/material_switch_style"
+            android:id="@+id/security_ui_switch"
+            android:onClick="@{() -> viewModel.toggleUiSecureMode()}"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:layout_marginEnd="16dp"
+            android:checked="@{viewModel.isUiSecureModeEnabled}"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/enable_vfs_switch" />
+
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/settings_title_style"
+            android:id="@+id/security_ui_title"
+            android:onClick="@{() -> viewModel.toggleUiSecureMode()}"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="10dp"
+            android:text="@string/settings_security_prevent_screenshots_title"
+            android:maxLines="2"
+            android:ellipsize="end"
+            app:layout_constraintTop_toTopOf="@id/security_ui_switch"
+            app:layout_constraintBottom_toBottomOf="@id/security_ui_switch"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toStartOf="@id/security_ui_switch"/>
+
     </androidx.constraintlayout.widget.ConstraintLayout>
 
 </layout>
\ No newline at end of file
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 095ac29cf..7aa5a8f6a 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -216,6 +216,7 @@
     <string name="settings_security_title">Securité</string>
     <string name="settings_security_enable_vfs_title">Chiffrer tous les fichiers</string>
     <string name="settings_security_enable_vfs_subtitle">Attention, vous ne pourrez pas revenir en arrière !</string>
+    <string name="settings_security_prevent_screenshots_title">Empêcher l\'interface d\'être enregistrée</string>
     <string name="settings_calls_title">Appels</string>
     <string name="settings_calls_echo_canceller_title">Utiliser l\'annulateur d\'écho</string>
     <string name="settings_calls_echo_canceller_subtitle">Évite que de l\'écho soit entendu par votre correspondant</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a423827bc..4c485b076 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -251,6 +251,7 @@
     <string name="settings_security_title">Security</string>
     <string name="settings_security_enable_vfs_title">Encrypt everything</string>
     <string name="settings_security_enable_vfs_subtitle">Warning: once enabled it can\'t be disabled!</string>
+    <string name="settings_security_prevent_screenshots_title">Prevent interface from being recorded</string>
     <string name="settings_calls_title">Calls</string>
     <string name="settings_calls_echo_canceller_title">Use echo canceller</string>
     <string name="settings_calls_echo_canceller_subtitle">Prevents echo from being heard by remote end</string>